Why have white, less educated voters left the Democratic Party over the past few decades? Scholars have proposed ethnocentrism, social issues and deindustrialization as potential answers. We highlight the role played by the 1994 North American Free Trade Agreement (NAFTA). In event-study analysis, we demonstrate that counties whose 1990 employment depended on industries vulnerable to NAFTA suffered large and persistent employment losses relative to other counties. These losses begin in the mid-1990s and are only modestly offset by transfer programs. While exposed counties historically voted Democratic, in the mid-1990s they turn away from the party of the president (Bill Clinton) who ushered in the agreement and by 2000 vote majority Republican in House elections. CONTINUED
Jiwon Choi, Ilyana Kuziemko, Ebonya L. Washington & Gavin Wright, National Bureau of Economic Research
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